"You could put your old carcass on the frame of an 'under 20 or 30 year old vehicle.' You would be 'green.'"

That would definitely work, but for me it would defeat the purpose of having an old rig to begin with...Heck, I don't even like disc brakes or digital gauges in an old truck! Must be a glutton for punishment though, because I absolutely HATE servicing drum brakes....